Commit b7b1a561 authored by Fabian Blatz's avatar Fabian Blatz Committed by Anas Nashif
Browse files

modules: lvgl: support linking memory pool to custom section 



This patch adds a kconfig option `LV_Z_MEMORY_POOL_CUSTOM_SECTION`
which allows to place the buffer the memory pool is backed by into a
section with the label ".lvgl_heap".

Resolves issue: #66494.

Signed-off-by: default avatarFabian Blatz <fabianblatz@gmail.com>
parent 4123c531

modules/lvgl/Kconfig.memory

+9 −0
Original line number Diff line number Diff line
@@ -39,6 +39,15 @@ config LV_Z_MEM_POOL_SIZE 
	help

	  Size of the memory pool in bytes



config LV_Z_MEMORY_POOL_CUSTOM_SECTION

	bool "Link memory pool to custom section"

	depends on LV_Z_MEM_POOL_SYS_HEAP

	help

	  Place LVGL memory pool in custom section, with tag ".lvgl_heap".

	  This can be used by custom linker scripts to relocate the LVGL

	  memory pool to a custom location, such as tightly coupled or

	  external memory.



config LV_Z_VDB_SIZE

	int "Rendering buffer size"

	default 100 if LV_Z_FULL_REFRESH

modules/lvgl/lvgl_mem.c

+7 −1
Original line number Diff line number Diff line
@@ -10,7 +10,13 @@ 
#include <zephyr/init.h>

#include <zephyr/sys/sys_heap.h>



static char lvgl_heap_mem[CONFIG_LV_Z_MEM_POOL_SIZE] __aligned(8);

#ifdef CONFIG_LV_Z_MEMORY_POOL_CUSTOM_SECTION

#define HEAP_MEM_ATTRIBUTES Z_GENERIC_SECTION(.lvgl_heap) __aligned(8)

#else

#define HEAP_MEM_ATTRIBUTES __aligned(8)

#endif /* CONFIG_LV_Z_MEMORY_POOL_CUSTOM_SECTION */

static char lvgl_heap_mem[CONFIG_LV_Z_MEM_POOL_SIZE] HEAP_MEM_ATTRIBUTES;



static struct sys_heap lvgl_heap;

static struct k_spinlock lvgl_heap_lock;

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